1. Public Health
8.L.1.1 and 8.L.1.2

2. Warm up
Which of the following reproduces by injecting its genetic material into a host cell?
A. parasite
B. Virus
C. bacterium
D. microorganism

3. Public health
Public health is the science of protecting and improving the health of the community
Research diseases, the pathogens that cause them and look for ways to prevent the spread of them

4. Widespread diseases
Infectious diseases- can be passed from person to person
Some spread more easily than others
Epidemic- an outbreak of a disease that affects many people in an area
Pandemic- an epidemic that spreads over a larger area or throughout the world

5. Do diseases affect plants?
Diseases affect plants and animals
Many plant diseases are caused by fungi

6. Vectors Vector is an organism that transmits (transfers) a disease
Examples: mosquitoes carry malaria
Ticks carry Lyme disease

7. Preventing infectious disease
Good hygiene, keeping yourself clean
Covering your mouth with your arm when you cough/sneeze
Washing your hands often
Avoid touching your face
Vaccines- contains a weaken or dead pathogen